This is not a DNA testing company, but a FREE database, where everybody who has tested at any company can upload their RAW DNA results. The website has several features to compare DNA, and also features to analyze for ancestry. This website was started as a way to compare results for matches between companies before the companies started allowing transfers. It is still very helpful now.
Gedmatch is a DNA database. It is free, and not afilliated to any of the DNA companies. You can create an account at their website.
The registration process is rather straight forward.
After you have created an account, you can upload a RAW DNA file. The link to do this is on the right side of the page under Upload your DNA files.